What does a function like rename() return in PHP and how can you verify it?

The rename() function in PHP returns a boolean value indicating whether the renaming of the file was successful or not. To verify the return value, you can simply check the result of the rename() function call. 

$old_file = 'old_file.txt';
$new_file = 'new_file.txt';

if (rename($old_file, $new_file)) {
    echo 'File renamed successfully!';
} else {
    echo 'File rename failed.';
}

Keywords

rename return value verification PHP function

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